HDMI 720p on i.MX8M

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HDMI 720p on i.MX8M

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dmitrykonyshev
Contributor II

Hello everyone,

The picture on the HDMI in the 1280x720 resolution looks correct only until the Weston desktop starts. After that, the picture shatters into pieces and starts trembling.

This can be reproduced on the i.MX8M EVK board with the fsl-image-qt5-validation-imx-xwayland-imx8mqevk.sdcard.bz2 image from L4.9.88_2.0.0_images_MX8MQ.tar.gz.

To reproduce this issue on a FullHD or 4K monitor, /etc/xdg/weston/weston.ini should be updated as follows to avoid switching to another resolution in Weston:

[output]

name=HDMI-A-1

mode=current

The same issue is observed in the 720x576@50hz mode.

Is it a known issue? How can this be fixed?

Regards,

Dmitry

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3 Replies

168 Views
diegoadrian
NXP Employee
NXP Employee

Hello,

I apologize for the late answer.

Is a known issue. This problem is not presented in the Linux version 4.9.51. I have it tested before and it worked correctly.

Best Regards,

Diego.

168 Views
dmitrykonyshev
Contributor II

Hello Diego Adrian,

Does NXP plan to fix this problem in 4.9.88? Is there a particular data for availability of such a fix?

Regards,
Dmitry

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168 Views
diegoadrian
NXP Employee
NXP Employee

Hello,

I cannot guarantee if the problem will be fixed in the future releases. However, is known the problem and hopefully, they are working on solving it.

I apologize for the inconveniences.

Best Regards,

Diego. 

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